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Article ; Online: Far-red light during cultivation improves postharvest chilling tolerance in basil

Larsen, Dorthe H. / Marcelis, Leo F.M. / van Kempen, Diederick / Kohlen, Wouter / Nicole, Celine C.S. / Woltering, Ernst J.

Postharvest Biology and Technology. 2023 Apr., v. 198 p.112232-

2023

Abstract: Basil (Ocimum basilicum L.) is a temperature sensitive plant and suffers from chilling injury (CI), especially during the postharvest storage. We investigated the effect of additional far-red light (FR) during cultivation at two temperatures on ... ...

Abstract	Basil (Ocimum basilicum L.) is a temperature sensitive plant and suffers from chilling injury (CI), especially during the postharvest storage. We investigated the effect of additional far-red light (FR) during cultivation at two temperatures on postharvest chilling tolerance. Basil was cultivated under red-white Light Emitting Diodes (LED) at 25 °C. During the last 3 weeks before harvest, plants were maintained at a high temperature (25 ºC) or exposed to a low temperature (15 ºC). Furthermore, plants were exposed to additional FR (180 µmol m⁻² s⁻¹) for different durations (0, 1 or 3 weeks). After harvest, leaves were stored at 4 and 12 ºC in darkness. Overall visual quality and maximum quantum yield of PS II (Fv/Fm) as indicators of chilling injury were monitored every third day for 15 d. Abscisic acid (ABA) and jasmonic acid (JA), carbohydrates, and antioxidants were measured at harvest and after 9 d of storage at 4 °C. Additional FR improved the chilling tolerance at both cultivation temperatures. Cultivation temperature had no effect on postharvest chilling tolerance. Hormone levels in basil leaves at harvest were not affected by FR. This indicates that ABA and JA are not involved in development of FR-induced chilling tolerance in basil. FR had no effect on the levels of antioxidants at harvest whereas the levels of soluble sugars and starch increased under additional FR. The positive effect of adding FR during cultivation on chilling tolerance in basil may be due to the increase in soluble sugars and starch.
Keywords	Ocimum basilicum ; abscisic acid ; basil ; far-red light ; jasmonic acid ; postharvest storage ; starch ; temperature ; Chilling injury ; Far-red ; Quality ; LED light
Language	English
Dates of publication	2023-04
Publishing place	Elsevier B.V.
Document type	Article ; Online
Note	Use and reproduction
ZDB-ID	1082798-5
ISSN	1873-2356 ; 0925-5214
ISSN (online)	1873-2356
ISSN	0925-5214
DOI	10.1016/j.postharvbio.2022.112232
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Effect of far-red and blue light on rooting in medicinal cannabis cuttings and related changes in endogenous auxin and carbohydrates

Sae-Tang, Wannida / Heuvelink, Ep / Kohlen, Wouter / Argyri, Eleni / Nicole, Céline C.S. / Marcelis, Leo F.M.

Scientia Horticulturae

2024 Volume 325

Abstract: Stem cuttings are used in the commercial cultivation of many crops, including medicinal cannabis, to produce large numbers of uniform and genetically identical plants. Light is an important environmental factor determining the success of the rooting of ... ...

Abstract	Stem cuttings are used in the commercial cultivation of many crops, including medicinal cannabis, to produce large numbers of uniform and genetically identical plants. Light is an important environmental factor determining the success of the rooting of stem cuttings. The aim of this study was to investigate the influence of different fractions of far-red and blue during the adventitious rooting phase of medicinal cannabis stem cuttings on rooting and whether these effects are related to changes in endogenous auxin and/or carbohydrates. Two experiments were conducted in climate chambers with sole LED lighting (blue, red, far-red) using two cannabis cultivars. In Experiment 1, four light treatments were applied: 100 µmol m−2s−1 red:blue (88:12) with additional 0, 50 or 100 µmol m−2s−1 far-red and a fourth treatment with 100 µmol m−2s−1 sole red with additional 50 µmol m−2s−1 far-red. In Experiment 2, the following four light treatments were applied: 90 µmol m−2s−1 red:blue (45:45) with additional 0 or 45 µmol m−2s−1 far-red, a third treatment with 45 µmol m−2s−1 sole red with additional 45 µmol m−2s−1 far-red, and a fourth dynamic treatment which was 45 µmol m−2s−1 sole red with additional 45 µmol m−2s−1 far-red for 7 days followed by 90 µmol m−2s−1 red:blue (45:45) for 14 days. The effects on rooting in both experiments were measured after 21 days of light treatments. In Experiment 2, periodic measurements of auxin and carbohydrates were performed. Far-red improved adventitious rooting only in Experiment 2, where both cultivars responded similarly. Adding far-red only during the initial stage (7 days) of rooting was sufficient to improve rooting, while it did not result in excessive stem elongation. The presence or absence of blue did not significantly affect rooting. Although the positive effects of far-red on auxin and carbohydrate concentrations in stem cuttings are a likely explanation for the observed effects of far-red on rooting, we did not find a correlation between auxin or carbohydrates and rooting.
Keywords	Cannabis ; IAA ; Light spectrum ; Rooting ; Starch ; Sugar
Subject code	580
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	185557-8
ISSN	0304-4238
ISSN	0304-4238
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: High Light Intensity Applied Shortly Before Harvest Improves Lettuce Nutritional Quality and Extends the Shelf Life.

Min, Qianxixi / Marcelis, Leo F M / Nicole, Celine C S / Woltering, Ernst J

Frontiers in plant science

2021 Volume 12, Page(s) 615355

Abstract: The effect of light intensity applied shortly before harvest on the nutritional quality, postharvest performance, and shelf life of loose-leaf lettuce ( ...

Abstract	The effect of light intensity applied shortly before harvest on the nutritional quality, postharvest performance, and shelf life of loose-leaf lettuce (
Language	English
Publishing date	2021-01-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2711035-7
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2021.615355
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Lack of Blue Light Regulation of Antioxidants and Chilling Tolerance in Basil.

Larsen, Dorthe H / Li, Hua / Shrestha, Samikshya / Verdonk, Julian C / Nicole, Celine C S / Marcelis, Leo F M / Woltering, Ernst J

Frontiers in plant science

2022 Volume 13, Page(s) 852654

Abstract: Blue light, measuring from 400 to 500 nm, is generally assumed to increase the content of antioxidants in plants independent of the species. Blue light stimulates the biosynthesis of phenolic compounds such as flavonoids and their subclass anthocyanins ... ...

Abstract	Blue light, measuring from 400 to 500 nm, is generally assumed to increase the content of antioxidants in plants independent of the species. Blue light stimulates the biosynthesis of phenolic compounds such as flavonoids and their subclass anthocyanins from the phenylpropanoid pathway. Flavonoids, anthocyanins, and phenolic acids are strong reactive oxygen species (ROS) scavengers and may lessen the symptoms of abiotic stresses such as chilling. We tested the hypothesis that a high percentage of blue light induces the accumulation of antioxidants and that this effect depends on the photosynthetic photon flux density (PPFD, 400-700 nm). The effect may be more pronounced at a lower PPFD. We investigated the changes in primary and secondary metabolites of basil in response to the percentage of blue light (9, 33, 65, and 100%) applied either as a 5-day End-Of-Production (EOP) treatment or continuous throughout the growth cycle in the green cv. Dolly. We also studied if the response to the percentage of blue light (9 or 90%) was dependent on the total PPFD (100 or 300 μmol m
Language	English
Publishing date	2022-04-07
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2613694-6
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2022.852654
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: High light intensity at End-Of-Production improves the nutritional value of basil but does not affect postharvest chilling tolerance

Larsen, Dorthe H. / Li, Hua / van de Peppel, Arjen C. / Nicole, Celine C.S. / Marcelis, Leo F.M. / Woltering, Ernst J.

Food chemistry. 2022 Feb. 01, v. 369

2022

Abstract: Basil suffers from chilling injury (CI) when stored at temperatures below 10–12 °C which seems related to the imbalance between reactive oxygen species (ROS) and antioxidants. We hypothesized that increased light intensity applied shortly before harvest ( ...

Abstract	Basil suffers from chilling injury (CI) when stored at temperatures below 10–12 °C which seems related to the imbalance between reactive oxygen species (ROS) and antioxidants. We hypothesized that increased light intensity applied shortly before harvest (EOP, End-Of-Production) increases nutritional value i.e. carbohydrates and antioxidants and could improve the chilling tolerance. Two basil cultivars were grown in a vertical farming set-up at a light intensity of 150 µmol m⁻² s⁻¹. During the last 5 days of growth, EOP light treatments ranging from 50 to 600 µmol m⁻² s⁻¹ were applied. After harvest the leaves were stored at 4 or 12 °C in darkness. Higher EOP light intensity increased the antioxidant (total ascorbic acid, rosmarinic acid) and carbohydrate contents at harvest. During storage antioxidants decreased more rapidly at 4 than at 12 °C. However, increased EOP light intensity did not alleviate chilling symptoms suggesting a minor role of antioxidants studied against chilling stress.
Keywords	ascorbic acid ; basil ; cultivars ; food chemistry ; light intensity ; nutritive value ; reactive oxygen species ; rosmarinic acid
Language	English
Dates of publication	2022-0201
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	243123-3
ISSN	1873-7072 ; 0308-8146
ISSN (online)	1873-7072
ISSN	0308-8146
DOI	10.1016/j.foodchem.2021.130913
Database	NAL-Catalogue (AGRICOLA)

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Article: Response of Basil Growth and Morphology to Light Intensity and Spectrum in a Vertical Farm.

Larsen, Dorthe H / Woltering, Ernst J / Nicole, Celine C S / Marcelis, Leo F M

Frontiers in plant science

2020 Volume 11, Page(s) 597906

Abstract: Vertical farming is becoming increasingly popular for production of leafy vegetables and herbs, with basil ( ...

Abstract	Vertical farming is becoming increasingly popular for production of leafy vegetables and herbs, with basil (
Language	English
Publishing date	2020-12-04
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2711035-7
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2020.597906
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: High light intensity at End-Of-Production improves the nutritional value of basil but does not affect postharvest chilling tolerance.

Larsen, Dorthe H / Li, Hua / van de Peppel, Arjen C / Nicole, Celine C S / Marcelis, Leo F M / Woltering, Ernst J

Food chemistry

2021 Volume 369, Page(s) 130913

Abstract: Basil suffers from chilling injury (CI) when stored at temperatures below 10-12 °C which seems related to the imbalance between reactive oxygen species (ROS) and antioxidants. We hypothesized that increased light intensity applied shortly before harvest ( ...

Abstract	Basil suffers from chilling injury (CI) when stored at temperatures below 10-12 °C which seems related to the imbalance between reactive oxygen species (ROS) and antioxidants. We hypothesized that increased light intensity applied shortly before harvest (EOP, End-Of-Production) increases nutritional value i.e. carbohydrates and antioxidants and could improve the chilling tolerance. Two basil cultivars were grown in a vertical farming set-up at a light intensity of 150 µmol m
MeSH term(s)	Antioxidants/analysis ; Ascorbic Acid ; Nutritive Value ; Ocimum basilicum ; Plant Leaves/chemistry
Chemical Substances	Antioxidants ; Ascorbic Acid (PQ6CK8PD0R)
Language	English
Publishing date	2021-08-19
Publishing country	England
Document type	Journal Article
ZDB-ID	243123-3
ISSN	1873-7072 ; 0308-8146
ISSN (online)	1873-7072
ISSN	0308-8146
DOI	10.1016/j.foodchem.2021.130913
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Unraveling the effects of blue light in an artificial solar background light on growth of tomato plants

Kalaitzoglou, Pavlos / Taylor, Craig / Calders, Kim / Hogervorst, Maikel / van Ieperen, Wim / Harbinson, Jeremy / de Visser, Pieter / Nicole, Celine C.S / Marcelis, Leo F.M

Environmental and experimental botany. 2021 Apr., v. 184

2021

Abstract: While the use of narrowband irradiance regimes containing different blue light fractions has proven useful to unravel blue light effects on plants at a fundamental level, it does not quantify the responses to blue light under natural daylight conditions. ...

Abstract	While the use of narrowband irradiance regimes containing different blue light fractions has proven useful to unravel blue light effects on plants at a fundamental level, it does not quantify the responses to blue light under natural daylight conditions. The objective of this study is to understand the blue light growth responses by combining photosynthetic measurements with measurements of whole plant light absorption in a simulated daylight spectrum enriched with different levels of blue light. To achieve this, tomato plants were grown under six different combinations of artificial solar light and blue LED light. Light treatments were defined by the blue light (400–500 nm) fraction of total photosynthetic photon flux density (400–700 nm) and included 27 % (no additional blue LED), 28 %, 31 %, 38 %, 43 % and 61 % blue light with a total photosynthetic photon flux density of 100 μmol m⁻² s⁻¹ in all treatments. Whole plant light absorption was estimated by using ray tracing simulation combined with measured 3-dimensional structure of the plant and optical properties of the leaves. The total dry weight of the plants decreased linearly with the increase of blue light fraction; the dry weight of the plants grown under 27 % blue being 1.6 times greater than that of the plants grown under 61 % blue. This large difference was related to lower light absorption by the plants when fraction blue light increased, due to more compact morphology, i.e. lower leaf area, leaf length/width ratio and shorter stem. Light-limited quantum yield and maximum photosynthetic capacity were not affected by blue light fraction. In the case of the latter, which in other studies has often been found to be positively related to blue light fraction, it may be that the blue light fraction already present in the daylight source had saturated this response. Overall, increasing the blue light fraction in a solar light background decreases growth mainly through its effect on plant morphology and light interception. It remains to be elucidated whether the responses observed using the low growth light intensity in the present study are maintained in high light growth environments more characteristic for tomato growth and production.
Keywords	absorption ; blue light ; density ; leaf area ; leaf length ; leaves ; light intensity ; optical properties ; photons ; photosynthesis ; plant morphology ; solar radiation ; tomatoes ; weight ; width
Language	English
Dates of publication	2021-04
Publishing place	Elsevier B.V.
Document type	Article
Note	NAL-light
ZDB-ID	195968-2
ISSN	0098-8472
ISSN	0098-8472
DOI	10.1016/j.envexpbot.2021.104377
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: High Light Intensity Applied Shortly Before Harvest Improves Lettuce Nutritional Quality and Extends the Shelf Life

Min, Qianxixi / Marcelis, Leo F.M. / Nicole, Celine C.S. / Woltering, Ernst J.

Frontiers in Plant Science

2021 Volume 12

Abstract: The effect of light intensity applied shortly before harvest on the nutritional quality, postharvest performance, and shelf life of loose-leaf lettuce (Lactuca sativa L. cv. Expertise RZ Salanova®) was investigated. Lettuce was grown either in a ... ...

Abstract	The effect of light intensity applied shortly before harvest on the nutritional quality, postharvest performance, and shelf life of loose-leaf lettuce (Lactuca sativa L. cv. Expertise RZ Salanova®) was investigated. Lettuce was grown either in a greenhouse with supplemental high-pressure sodium light (Experiment 1, EXP 1) or in a climate room under white LED light (Experiment 2, EXP 2). In both experiments full grown plants were transferred to a climate room for the End of Production (EoP) light treatments during the last week of cultivation. During EoP lighting plants were exposed to different intensities (0, 110, and 270 μmol m–2 s–1 in EXP 1; 50, 210, and 470 μmol m–2 s–1 in EXP 2) from white-red LEDs for 6 (EXP 2) or 7 days (EXP 1). Mature leaves were then harvested and stored in darkness at 10°C to study the postharvest performance. Changes in dry matter content, total ascorbic acid, and carbohydrates (including glucose, fructose sucrose, and starch) levels were determined during EoP lighting and during the subsequent shelf life as indicators of lettuce nutritional quality. Quality aspects (appearance, texture, and odor) were accessed during the shelf life as indicators of postharvest performance. In both experiments, high light intensities applied in EoP lighting increased dry matter percentage and contents of ascorbic acid (AsA) and carbohydrates at harvest and these increased levels were maintained during the shelf life. Increased light intensity in EoP treatment also extended the shelf life. The levels of AsA and carbohydrates at harvest correlated positively with the subsequent shelf life, indicating that the prolonged shelf life relies on the improved energy and antioxidant status of the crop at harvest.
Keywords	End of Production lighting ; LED ; ascorbic acid ; carbohydrates ; lettuce ; overall visual quality ; shelf life ; vertical farm
Subject code	580
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2613694-6
ISSN	1664-462X
ISSN	1664-462X
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: High light intensity at End-Of-Production improves the nutritional value of basil but does not affect postharvest chilling tolerance

Larsen, Dorthe H. / Li, Hua / van de Peppel, Arjen C. / Nicole, Celine C.S. / Marcelis, Leo F.M. / Woltering, Ernst J.

Food Chemistry

2022 Volume 369

Abstract	Basil suffers from chilling injury (CI) when stored at temperatures below 10–12 °C which seems related to the imbalance between reactive oxygen species (ROS) and antioxidants. We hypothesized that increased light intensity applied shortly before harvest (EOP, End-Of-Production) increases nutritional value i.e. carbohydrates and antioxidants and could improve the chilling tolerance. Two basil cultivars were grown in a vertical farming set-up at a light intensity of 150 µmol m−2 s−1. During the last 5 days of growth, EOP light treatments ranging from 50 to 600 µmol m−2 s−1 were applied. After harvest the leaves were stored at 4 or 12 °C in darkness. Higher EOP light intensity increased the antioxidant (total ascorbic acid, rosmarinic acid) and carbohydrate contents at harvest. During storage antioxidants decreased more rapidly at 4 than at 12 °C. However, increased EOP light intensity did not alleviate chilling symptoms suggesting a minor role of antioxidants studied against chilling stress.
Keywords	Antioxidants ; Basil (Ocimum basilicum L.) ; Chilling injury ; LED light ; Postharvest ; Vertical farming
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	243123-3
ISSN	1873-7072 ; 0308-8146
ISSN (online)	1873-7072
ISSN	0308-8146
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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